<template>
  <div>
    <!--面包屑导航区域-->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>商品管理</el-breadcrumb-item>
      <el-breadcrumb-item>商品列表</el-breadcrumb-item>
    </el-breadcrumb>
    <!--  卡片区域-->
    <el-card>
      <!--搜索与添加区域-->
      <el-row :gutter="20">
        <el-col :span="7">
          <el-input placeholder="请输入内容" clearable
                    v-model="queryInfo.query" @clear="getGoodsList">
            <el-button slot="append" icon="el-icon-search" @click="getGoodsList"></el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary" @click="goodsAddPage">添加商品</el-button>
        </el-col>
      </el-row>
      <!--用户列表区域-->
      <el-table :data="goodsList" border stripe>
        <el-table-column type="index" label="#"></el-table-column>
        <el-table-column prop="goods_name" label="商品名称"></el-table-column>
        <el-table-column prop="goods_price" label="商品价格(元)" width="100"></el-table-column>
        <el-table-column prop="goods_weight" label="商品重量" width="70px"></el-table-column>
        <el-table-column prop="goods_number" label="商品数量" width="70px"></el-table-column>
        <el-table-column label="创建时间" prop="add_time" width="140px">
          <template slot-scope="scope">{{ scope.row.add_time | dateFormat }}</template>
        </el-table-column>
        <el-table-column label="操作" width="180px">
          <template slot-scope="scope">
            <!--修改按钮-->
            <el-button type="primary" icon="el-icon-edit" size="mini"></el-button>
            <!--删除按钮-->
            <el-button type="danger" icon="el-icon-delete"
                       size="mini" @click="removeById(scope.row.goods_id)"></el-button>
          </template>
        </el-table-column>
      </el-table>
      <!--  分页区域-->
      <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="queryInfo.pagenum"
        :page-sizes="[10, 15, 30, 50,100]"
        :page-size="queryInfo.pagesize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total" background>
      </el-pagination>
    </el-card>
  </div>
</template>

<script>
export default {
  name: 'List',
  data () {
    return {
      // 商品列表
      goodsList: [],
      // 总条数
      total: 0,
      //  获取用户列表的参数对象
      queryInfo: {
        query: '',
        // 当前页数
        pagenum: 1,
        // 当前每页显示条数
        pagesize: 10
      },
      //  控制添加对话框的显示与隐藏
      addDialogVisible: false
    }
  },
  created () {
    this.getGoodsList()
  },
  methods: {
    // 根据分页获取对应的商品列表
    async getGoodsList () {
      const { data: res } = await this.$http.get('goods', {
        params: this.queryInfo
      })
      // console.log(this.queryInfo)
      if (res.meta.status !== 200) {
        return this.$message.error('获取商品列表失败！')
      }
      this.goodsList = res.data.goods
      // console.log(res.data)
      this.total = res.data.total
    },
    handleSizeChange (newSize) {
      this.queryInfo.pagesize = newSize
      this.getGoodsList()
    },
    handleCurrentChange (newSize) {
      this.queryInfo.pagenum = newSize
      this.getGoodsList()
    },
    // 通过Id删除商品
    async removeById (id) {
      const confirmResult = await this.$confirm(
        '此操作将永久删除该商品, 是否继续?',
        '提示',
        {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning'
        }
      ).catch(err => err)
      if (confirmResult !== 'confirm') {
        return this.$message.info('已取消删除！')
      }
      const { data: res } = await this.$http.delete('goods/' + id)
      if (res.meta.status !== 200) {
        return this.$message.error('删除商品失败！')
      }
      this.$message.success('删除商品成功！')
      await this.getGoodsList()
    },
    //  添加商品跳转页面
    goodsAddPage () {
      this.$router.push('goods/add')
    }
  }
}
</script>

<style scoped>

</style>
